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A car of mass 800 kg moves on a circular...

A car of mass 800 kg moves on a circular track of radius 40 m . If the coefficient of friction is 0.5, then maximum velocity with which the car can move is

A

` 7 m//s`

B

`14 m//s`

C

`8 m//s`

D

`12m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
`V=sqrt(mu rg)`
`=sqrt(0.5xx40xx9.8)`
`=sqrt(20xx9.6)=sqrt(196)=14 m//s.`
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